MDY
State Street SPDR S&P MIDCAP 400 ETF Trust · Financial Services · Asset Management - Global
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -30.0% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 88 | +8 | 15.28M | $10.73B | +12 | −4 |
| Q1 2026 | 81 | -7 | 15.76M | $9.71B | +2 | −9 |
| Q4 2025 | 88 | +3 | 16.59M | $10.01B | +4 | −1 |
| Q3 2025 | 13 | 0 | 3.63M | $2.17B | — | — |
| Q2 2025 | 10 | 0 | 116.59K | $66.05M | +1 | −1 |
| Q1 2025 | 7 | +2 | 354.07K | $188.89M | +2 | — |
| Q4 2024 | 5 | 0 | 444.95K | $253.44M | +2 | −2 |
| Q3 2024 | 5 | 0 | 164.85K | $93.91M | +2 | −2 |
| Q2 2024 | 5 | — | 119.95K | $64.18M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 39.52K | — | $22.39M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 39.52K | — | $22.39M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 39.52K | — | $22.39M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Fidelity (FMR) ✦ | 31.27K | — | $17.71M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Fidelity (FMR) ✦ | 31.27K | — | $17.71M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | AQR Capital Management ✦ | 12.71K | +98.1% | $7.20M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | Millennium Management ✦ | 8.55K | -91.6% | $4.84M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 8 | GAMCO Investors ✦ | 5.51K | New | $3.12M | 0.0% | New | 1 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 4.99K | +66.5% | $2.83M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | T. Rowe Price ✦ | 4.99K | +66.5% | $2.83M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | The Vanguard Group ✦ (passive) | 4.93K | — | $2.79M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | The Vanguard Group ✦ (passive) | 4.93K | — | $2.79M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Renaissance Technologies ✦ | 3.70K | -72.6% | $2.10M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | Gotham Asset Management ✦ | 3.20K | 0.0% | $1.81M | 0.0% | Held | 2 | SEC ↗ |
| 15 | Citadel Advisors ✦ | 2.21K | -99.0% | $1.25M | 0.0% | ▼ Trim | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| GAMCO Investors | $3.12M | 0.0% |
Exited
| Marshall Wace | $1.33M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,436 holders, 24.61M shares, $14.78B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.